Operating Systems Interview Question Answers

Friends here we are providing you with the detailed information about the Technical Questions that can be asked to you whenever you go for a Job Interview in the Information and Technology Sector. We are covering Following Topics:

• UNIX Questions
  
• C Language, 
  
• .Net Questions, 
  
• C++ Language, 
  
• DBMS Questions, 
  
• Data Structures,
  
• Networking, 
  
• HR Questions, 
  
• Operating Systems etc.
  

In this page we are providing you with a list of Operating Systems related Questions List that can be asked to you in a job interview

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• Operating Systems Interview Question Answers
  
• What do you mean by an operating system?
  
• Define various elements of computers?
  
• What do you mean by purpose of different operating systems?
  
• What are the different operating systems?
  
• What are operating system services?
• What do you mean by BIOS?
  
• Explain the concept of the batched operating systems?
  
• Explain the concept of the multi-programmed operating systems?
  
• Explain the concept of the time-sharing operating systems?
  
• Explain the concept of the multi-processor systems or parallel systems?
  
• Explain the concept of the Distributed systems?
  
• Explain the concept of Real-time operating systems?
  
• Define MULTICS?
  
• What do you mean by SCSI?
  
• What do you mean by a sector?
  
• What do you mean by cache-coherency?
  
• What are residence monitors?
  
• What do you mean by dual-mode operation?
  
• What are the operating system components?
  
• What are operating system services?
  
• What are system calls?
  
• What do you mean by a layered approach and what do you mean by its advantage?
  
• What do you mean by micro kernel approach and site its advantages?
• Benefits of virtual machines?
• What do you mean by a process?
  
• What are the states of a process?
  
• What are various scheduling queues?
  
• What do you mean by a job queue?
  
• What do you mean by a ready queue?
  
• What do you mean by a device queue?
  
• What do you mean by a long term scheduler & short term schedulers?
  
• What do you mean by context switching?
  
• What are the disadvantages of context switching?
  
•  What are co-operating processes?
• What are types of threads?
  
• Which category the java thread do fall in?
  
• What are multithreading models?
  
• What do you mean by a P-thread?
  
• What are java threads?
  
• What do you mean by process synchronization?
  
• What do you mean by critical section problem?
  
• What do you mean by a semaphore?
  
• What do you mean by bounded-buffer problem?
  
• What do you mean by readers-writers problem?
  
• What do you mean by dining philosophers’ problem?
  
• What do you mean by a deadlock?
  
• What are necessary conditions for dead lock?
  
• What do you mean by resource allocation graph?
  
• What are deadlock prevention techniques?
  
• What do you mean by a safe state and a safe sequence?
  
• What are the deadlock avoidance algorithms?
  
• What are the basic functions of an operating system?
  
• Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.
  
• What do you mean by a Real-Time System?
  
• What do you mean by the difference between Hard and Soft real-time systems?
  
• What do you mean by virtual memory?
  
• What do you mean by cache memory?
  
• Differentiate between Complier and Interpreter?
  
• What are different tasks of Lexical Analysis?
  
• Why paging is used?
  
• What do you mean by Context Switch?
  
• Distributed Systems?
  
• Difference between Primary storage and secondary storage?
  
• What do you mean by CPU Scheduler?
  
• What do you mean by deadlock?
  
• What do you mean by Dispatcher?
  
• What do you mean by Throughput, Turnaround time, waiting time and Response time?
  
• Explain the difference between microkernel and macro kernel?
  
• What do you mean by multi-tasking, multi programming, multi-threading?
  
• Give a non-computer example of preemptive and non-preemptive scheduling?
• Different types of Real-Time Scheduling?
  
• What are the Methods for Handling Deadlocks?
  
• What do you mean by a Safe State and its’ use in deadlock avoidance?
  
• Recovery from Deadlock?
  
• Difference between Logical and Physical Address Space?
  
• Binding of Instructions and Data to Memory?
  
• What do you mean by Memory-Management Unit (MMU)?
  
•  What are Dynamic Loading, Dynamic Linking and Overlays?
  
• What do you mean by fragmentation? Different types of fragmentation?
  
• Define Demand Paging, Page fault interrupt, and Trashing?
  
• Explain Segmentation with paging?
  
• Under what circumstances do page faults occur? Describe the actions taken by the operating system when a page fault occurs?
  
• What do you mean by the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?